Changes

• t.Parallel() marks a test function, telling Go that it can be run
  in parallel with other functions in the same package.
• -parallel determines "how many test functions inside a single test
  package can run in parallel".

As all examples tests are usingt.Parallel(), they all run in
parallel. This might overwhelm the kind cluster a bit. This is making
sure we run at most 6 of them at the same time.

It also removes the parentst.Parallel() as this is.. just weird.

Signed-off-by: Vincent Demeestervdemeest@redhat.com

/kind misc

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